Refactoring exercise where data layer and business layer are not clearly separated

the goal is to practice refactoring to a Chain of Responsibility pattern

sample code for explaining the Law of Demeter

for writing tests that check correct objects are included in a list

refactoring exercise to practice extract method and extract class

Starting code for doing the Shopping Basket kata with TDD https://sammancoaching.org/kata_descriptions/shopping_basket.html

the code has a bug and needs some unit tests. You'll need a test double too.

Code kata for learning about test doubles and SOLID principles

An exercise for learning about Approval testing and in particular designing a printer

starting position for the RPG Combat Kata with an approval testing approach

a kata for practicing both testing with Combination Approvals and 'Split Phase' refactoring

a kata for practicing a refactoring: template method -> strategy pattern

A extension of the gilded rose kata, teaching Embellish through Functor and Applictive

Refactoring coding kata

Code kata for learning more about Test Doubles and SOLID principles

several implementations which you can test with the same test cases

Refactoring kata dealing with Primitive Obsession.

code kata for learning more about test doubles and SOLID principles

A refactoring kata where you'll practice disentangling business logic from frameworks and SQL

exercise to help you understand the Law of Demeter

Refactoring Exercise Focusing on Names.

exercise to practice getting a void function with no arguments under test and refactored

Write tests for a command line program that takes user input.

starting code and instructions to help you with the Scrabble kata

for practicing test design using https://sammancoaching.org/kata_descriptions/calc_stats.html

the code has bugs and needs some unit tests. You'll need a test double too.

This is a refactoring kata for improving your coding skills

Starter projects, inventory and sample room for a Roguelike Product Development Retreat.